scholarly journals Allogeneic human umbilical cord-derived mesenchymal stem cells for moderate and severe bronchopulmonary dysplasia in children: study protocol for a randomized controlled trial (the MSC-BPD Trial)

2019 ◽  
Author(s):  
Xian Wu ◽  
Yunqiu Xia ◽  
Ou Zhou ◽  
Yan Song ◽  
Xianhong Zhang ◽  
...  

Abstract Background Bronchopulmonary dysplasia (BPD) is a complex lung pathological lesion secondary to multiple factors, and one of the most common chronic lung diseases with poor prognosis, especially in preterm infants with moderate and severe BPD. However, there is lack of effective therapies for this disease. Stem cell therapy has been shown a promising way for improving lung injury and abnormal alveolarization, and human umbilical cord (hUC) is a good resource for mesenchymal stem cells (MSCs), which have demonstrated in some other diseases. We hypothesis that intravenous allogeneic hUC-MSCs is safe and effective for moderate and severe BPD. Methods/design The MSC-BPD trial is a randomized single-center open-label and dose-escalation phase II trial designed to investigate the safety and efficacy of hUC-MSCs in children with moderate and severe BPD. In this study, 57 patients will be enrolled and randomly divided into two intervention groups and one control group. Patients in the intervention groups will be receive a low dose of hUC-MSCs (n=19, 1 million cells/kg) or a high dose of hUC-MSCs (n=19, 5 million cells/kg) in combination with traditional supportive treatments for BPD. The patients in the control group (n=19) will be treated with traditional supportive treatments alone without receiving hUC-MSCs treatment. The primary outcome measures will be the accumulative duration of oxygen therapy. Follow-up assessments will be performed at 1, 3, 6, 12, 24 months after interventions. Statistical analyses will evaluate the efficacy of the hUC-MScs treatment. Discussion This study will be the first randomized controlled trial to evaluate the safety and efficacy of intravenous hUC-MSCs in children with moderate and severe BPD. Results of the trial will provide a new evidence-based therapy for moderate and severe BPD. Trial Registration ClinicalTrials.gov, NCT03601416. Registered on 26th July 2018.

2019 ◽  
Author(s):  
Xian Wu ◽  
Yunqiu Xia ◽  
Ou Zhou ◽  
Yan Song ◽  
Xianhong Zhang ◽  
...  

Abstract Background: Bronchopulmonary dysplasia (BPD) is a complex lung pathological lesion secondary to multiple factors and one of the most common chronic lung diseases with a poor prognosis, especially in preterm infants. However, effective therapies for this disease are lacking. Stem cell therapy is a promising way to improve lung injury and abnormal alveolarization, and the human umbilical cord (hUC) is a good source of mesenchymal stem cells (MSCs), which have demonstrated efficacy in other diseases. We hypothesized that intravenous allogeneic hUC-MSCs are safe and effective for severe BPD. Methods: The MSC-BPD trial is a randomized single-center open-label dose-escalation phase II trial designed to investigate the safety and efficacy of hUC-MSCs in children with severe BPD. In this study, 72 patients will be enrolled and randomly divided into two intervention groups and one control group. Patients in the intervention groups will receive a low dose of hUC-MSCs (n = 24; 2.5 million cells/kg) or a high dose of hUC-MSCs (n = 24; 5 million cells/kg) in combination with traditional supportive treatments for BPD. The patients in the control group (n = 24) will be treated with traditional supportive treatments alone without hUC-MSCs. The primary outcome measures will be cumulative duration of oxygen therapy. Follow-up assessments will be performed at 1, 3, 6, 12, and 24 months post-intervention, and the key outcome during follow-up will be changes on chest radiography. Statistical analyses will evaluate the efficacy of the hUC-MSC treatment. Discussion: This will be the first randomized controlled trial to evaluate the safety and efficacy of intravenous hUC-MSCs in children with severe BPD. Its results will provide a new evidence-based therapy for severe BPD.


2019 ◽  
Author(s):  
Xian Wu ◽  
Yunqiu Xia ◽  
Ou Zhou ◽  
Yan Song ◽  
Xianhong Zhang ◽  
...  

Abstract Background: Bronchopulmonary dysplasia (BPD) is a complex lung pathological lesion secondary to multiple factors and one of the most common chronic lung diseases with a poor prognosis, especially in preterm infants. However, effective therapies for this disease are lacking. Stem cell therapy is a promising way to improve lung injury and abnormal alveolarization, and the human umbilical cord (hUC) is a good source of mesenchymal stem cells (MSCs), which have demonstrated efficacy in other diseases. We hypothesized that intravenous allogeneic hUC-MSCs are safe and effective for severe BPD. Methods: The MSC-BPD trial is a randomized single-center open-label dose-escalation phase II trial designed to investigate the safety and efficacy of hUC-MSCs in children with severe BPD. In this study, 72 patients will be enrolled and randomly divided into two intervention groups and one control group. Patients in the intervention groups will receive a low dose of hUC-MSCs (n = 24; 2.5 million cells/kg) or a high dose of hUC-MSCs (n = 24; 5 million cells/kg) in combination with traditional supportive treatments for BPD. The patients in the control group (n = 24) will be treated with traditional supportive treatments alone without hUC-MSCs. The primary outcome measures will be cumulative duration of oxygen therapy. Follow-up assessments will be performed at 1, 3, 6, 12, and 24 months post-intervention, and the key outcome during follow-up will be changes on chest radiography. Statistical analyses will evaluate the efficacy of the hUC-MSC treatment. Discussion: This will be the first randomized controlled trial to evaluate the safety and efficacy of intravenous hUC-MSCs in children with severe BPD. Its results will provide a new evidence-based therapy for severe BPD. Trial registration: ClinicalTrials.gov (NCT03601416; registered on July 26, 2018) Keywords: bronchopulmonary dysplasia, human umbilical cord-derived mesenchymal stem cells, clinical trial, protocol


2019 ◽  
Author(s):  
Xian Wu ◽  
Yunqiu Xia ◽  
Ou Zhou ◽  
Yan Song ◽  
Xianhong Zhang ◽  
...  

Abstract Background : Bronchopulmonary dysplasia (BPD) is a complex lung pathological lesion secondary to multiple factors, and one of the most common chronic lung diseases with poor prognosis, especially in preterm infants with severe BPD. However, there is lack of effective therapies for this disease. Stem cell therapy has been shown a promising way for improving lung injury and abnormal alveolarization, and human umbilical cord (hUC) is a good resource for mesenchymal stem cells (MSCs), which have demonstrated in some other diseases. We hypothesis that intravenous allogeneic hUC-MSCs is safe and effective for severe BPD. Methods/design: The MSC-BPD trial is a randomized single-center open-label and dose-escalation phase II trial designed to investigate the safety and efficacy of hUC-MSCs in children with severe BPD. In this study, 48 patients will be enrolled and randomly divided into two intervention groups and one control group. Patients in the intervention groups will be receive a low dose of hUC-MSCs (n=16, 2.5 million cells/kg) or a high dose of hUC-MSCs (n=16, 5 million cells/kg) in combination with traditional supportive treatments for BPD. The patients in the control group (n=16) will be treated with traditional supportive treatments alone without receiving hUC-MSCs treatment. The primary outcome measures will be the cumulative duration of oxygen therapy. Follow-up assessments will be performed at 1, 3, 6, 12, 24 months after interventions, and the key outcome during follow-up will be the chest radiography changes. Statistical analyses will evaluate the efficacy of the hUC-MScs treatment. Discussion: This study will be the first randomized controlled trial to evaluate the safety and efficacy of intravenous hUC-MSCs in children with severe BPD. Results of the trial will provide a new evidence-based therapy for severe BPD. Trial registration: ClinicalTrials.gov, NCT03601416. Registered on 26th July 2018. Key words: bronchopulmonary dysplasia, human umbilical cord-derived mesenchymal stem cells, clinical trial, protocol.


2020 ◽  
Author(s):  
Giacomo Lanzoni ◽  
Elina Linetsky ◽  
Diego Correa ◽  
Shari Messinger Cayetano ◽  
Antonio C. Marttos ◽  
...  

2021 ◽  
Vol 11 (9) ◽  
pp. 1838-1843
Author(s):  
Xiaohong Zhou ◽  
Xuzhong Hao ◽  
Feifei He

To investigate whether exosomes (exo) derived from human umbilical cord mesenchymal stem cells (huMSCs) and microRNA (miRNA)-342 have a protective effect on severe acute pancreatitis (SAP). Human umbilical cord blood was collected to extract huMSC-exo. With sham-operated mice as control group (n = 10), the other mice were induced to SAP model (n = 20), while 10 of the SAP mice received treatment with huMSC-exo. ELISA was performed to determine amylase and TAP level as well as inflammatory factors and HE staining to evaluate pathological changes of pancreatic tissue. The expression of miR-342 and Shh, Ptchl, and Smo in the Hh signal pathway was detected using RT-qPCR. The expression of miR-342 and the mRNA expression of Shh, Ptchl, and Smo was higher than that in model group (p < 0.05). The level of serum amylase, trypsinogen, and IFN-γ,Fasl, and IL-6 was upregulated in pancreas tissues of SAP mice relative to healthy mice, but their levels were decreased upon treatment with huMSC-exo and slightly higher than those of the control group, just not significantly. Collectively, the huMSC-exo may activate the Hh signaling pathway by regulating the expression of miR-342 increasing the expression of Shh, Ptchl, and Smo, and thereby healing of damaged pancreatic tissues in SAP.


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